Pin.



P. M. SWARTZ.

PIN. ArPLIaATIoN FILED A1 1z.11, 190s.

Patented Maz". 23, 1909.

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FRED M. SWARTZ, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO THE ALPHA JEWELRY COMPANY, A CORPORATION OF RHODE ISLAND.

PIN.

Patented March 23, 1909.

Application led April 11, 1908. Serial No. 426,446.

To all whom 'it may concern:

Be it known that I, FRED M. SWARTZ', a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain `new and useful Improvements in Pins, of which the following is a specification.

My invention relates to improvements in pins, particularly to the joint portions thereof, and has for its essential objects, strength, durability, simplicity, a minimum of parts, inexpensiveness of construction, facility of assemblage and operation, control of the tongue travel, and rigidity of the pivot member.

To the above ends essentially my invention consists in the novel construction and Vcombination of parts hereinafter described and illustrated in the accompanying drawings, which constitute a part of this speciiication, wherein,

Figures l, 2 and 3, are plan, side, and front elevations respectively of the joint member. Fig. 4, a section on line x .t of Fig. l. Fig. 5, a sideelevation of a complete pin, showing the joint in longitudinal section, and indicating in broken lines the pin tongue in eX- treme open position, and Fig. 6, a like elevation of the pin showing in section the 'modified form of joint.

Like reference characters parts throughout the views.

My novel joint, A, comprises two vertically disposed parallel guide plates, a, connected at their intermediate portions by a cross bar, b, preferably integral with one or both plates to insure against accidental axial movement of the bar. In this instance, the bar is substantially cylindrical. Extending forwardly from the front side orrportion of the bar, b, intermediate the plates, is a proindicate like jection, c, slightly inclined upwardly. The

lower ends of the plates, a, are connected by a base or integral base plate, d. For the purposes of strength and cheapness, it is preferable that all the described parts of the joint be made out of a single piece of material. A

In Fig. 5 is shown the joint, A, fixed by solder or otherwise to a pin body, E, carrying the usual catch, F. The pin tongue member comprises a pointed shaft, G, provided with an open circular loop, g, upon its end which serves as a head, and loosely engages the rod or bearing, b, upon which it is pivoted; rPhe free upwardly directed end, g', of the loop, g, travels upwardly toward the projection, c, when the shaft, G, is moved rearwardly, which projection'serves as a stop to the excessive backward travel of the shaft when the loop end contacts with its lower face. This position is shown in broken lines in Fig. 5. The upper face of the projection, C, forms a stop and bearing for the shaft, G, in its downward travel. The location of the projection is such that its end supports the shaft at a slight inclination with relation to the catch, F, as shown in Figs. 5 and 6, thereby affording the desired spring tension of the shaft when engaged with the catch. The plates, a, guide the shaft. in its4 travel.

If desired, and at the sacrifice of some strength, the base, d, of the joint member may be omitted, as shown in Fig. 6, where the pin body, E, itself serves as a base in actual use.

What I claim is,

l. A pin-joint lcomprising two parallel guide plates, a rod connecting the plates, and a projection upon the side of the rod.

2. A` pin-joint comprising two parallel guide plates, a rod connecting the guide plates and integral with the guide plates, and a projectionupon the side of the rod.

"3. A pin-joint comprising two upright guide lates, a rod connecting the plates, and an inc ined projection upon the rod.

4. In an article of the class described, the combination with a pin shaft provided with a loop, of a bar upon which the loop is pivotally mounted, guide plates upon the bar, and means upon the bar cooperating with the loop for limiting the trave of the shaft.

5. In an article of the class described, the combination with a pin shaft provided with a loop, of a bar upon which the loop is pivotally mounted, guide plates upon the bar, and means upon the bar in the path of the loop for limiting the travel of the shaft.

6. In an article of the class described, the combination with a pin shaft provided with a loop, of a bar upon which the loop is pivotally mounted, guide plates upon the bar, and means upon the bar in the path of the shaft for limiting the travel of the shaft.

7. In an article of the class described, the combination with a pin shaft provided with a loop, of a bar upon which the loop is pivotally mounted, guide plates upon the bar, and

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a single means upon the ber for limiting the travel oll the shaft in both directions.

8. In an article ol' the class described, the combination With a pin shaft provided with o loop, of a bar upon which the loop is pivot- :Llly mounted, guide plates upon the bar, and means upon the bar in the path of the shaft l'or tensioning` the shaft.

.9. In an article ol the class described, the combination with a pin shaft provided with a loop, ol` a, bar upon which the loop is pivotally mounted, guide plates upon the bar, and it projection upon the ber in the path ol the lll). In an article of the class described, the

combination with a pin shalt provided With a loop, ol a han' upon which the loop is pivot :illy mounted, guide plates upon the bau', :ind :t projection upon the bnr in the path oll the shalt.

1l. In an article ol the class described, the combination with a pin shalt provided with an open loop, ol` o bar upon which the loop is pivotally mounted, guide plates upon the bar, :ind :i projection upon the bnr extending into the opening ol' the loop.

In testimony whereoll I have nilixed my signature in presence ol' two Witnesses.

FRED M. SVVAR'IZ.

Iitnesses:

I-IoRA'rio E. BELLoWs, JOSEPH E. BURNS.

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